R. Marrs

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Functional capacity of the gonadotrophs during pregnancy and the puerperium.

D. Mishell, R. Marrs, O. Kletzky, 1981, American journal of obstetrics and gynecology.

The rate at which serum total beta-subunit human chorionic gonadotropin increases after embryo transfer is a predictor of the viability of pregnancy and an identifier of determinants of pregnancy.

R. Marrs, B. Stone, J. Vargyas, 2006, Fertility and sterility.

Numbers and quality of oocytes after induction of multiple folliculogenesis in women and in mice with different lots of human menopausal gonadotropins.

R. Marrs, B. Stone, N. A. Rector, 1993, Fertility and sterility.

Oocyte maturation inhibitor activity in human follicular fluid: Quantitative determination in unstimulated and clomiphene citrate- and human menopausal gonadotropin-stimulated ovarian cycles

R. Marrs, Sharon Winer-Sorgen, Joanne Brown, 1986, Journal of in Vitro Fertilization and Embryo Transfer.

Potential factors affecting embryo survival and clinical outcome with cryopreserved pronuclear human embryos.

R. Marrs, B. Stone, Joanne E Greene, 2004, American journal of obstetrics and gynecology.

Hormonal and morphologic effects of bromocriptine on normal rat pituitary and GH3 tumor cells.

S. Zacharías, P. Lahteenmaki, R. Marrs, 1985, American journal of obstetrics and gynecology.

Follicular fluid steroid levels in dysmature and mature follicles from spontaneous and hyperstimulated cycles in normal and anovulatory women.

R. Lobo, R. Marrs, G. diZerega, 1985, The Journal of clinical endocrinology and metabolism.

Termination of early gestation with a single vaginal suppository of (15S)-15-methyl-prostaglandin F2alpha methyl ester.

D. Mishell, S. Roy, R. Marrs, 1980, Contraception.

Termination of early gestation with 9-deoxo-16,16-dimethyl-9-methylene prostaglandin E2.

D. Mishell, S. Roy, R. Marrs, 1982, Contraception.

Concentrations of follicle regulatory protein, steroids and gonadotrophins in antral fluids from women stimulated with metrodin and hCG.

S. Tonetta, R. Marrs, B. Stone, 1990, Journal of reproduction and fertility.

The effect of different methods of ovarian stimulation for human in vitro fertilization and embryo replacement.

R. Marrs, J. Vargyas, C. Morente, 1984, Fertility and sterility.

Management of patients with hyperprolactinemia and normal or abnormal tomograms.

V. Davajan, R. Marrs, O. Kletzky, 1983, American journal of obstetrics and gynecology.

The use of thyrotropin-releasing hormone in distinguishing prolactin-secreting pituitary adenoma.

R. Marrs, O. Kletzky, S. Bertolli, 1980, American journal of obstetrics and gynecology.

Ovarian responses to menopausal gonadotropins in groups of patients with differing basal growth hormone levels.

R. Marrs, B. Stone, 1992, Fertility and sterility.

Assessment of sister chromatid exchange in mouse embryos produced by microsurgical fertilization

R. Marrs, P. Quinn, T. Hirayama, 1994, Molecular reproduction and development.

Comparison of serum prolactin, plain radiography, and hypocycloidal tomography of the sella turcica in patients with galactorrhea.

V. Davajan, D. Mishell, R. Marrs, 1979, American journal of obstetrics and gynecology.

Effect of Suckling on Serum Prolactin, Luteinizing Hormone, Follicle-Stimulating Hormone, and Estradiol During Prolonged Lactation

D. Mishell, R. Marrs, P. Fleiss, 1985, Obstetrics and gynecology.

Insights from clinical experience in treating IVF poor responders.

N. Gleicher, R. Marrs, A. Domar, 2018, Reproductive biomedicine online.

To publish or not to publish?

R. Marrs, B. Stone, P. Quinn, 1990, Fertility and sterility.

Alteration of human follicular fluid plasminogen activator activity by ovarian hyperstimulation

R. Marrs, J. Campeau, G. diZerega, 1984, Journal of in Vitro Fertilization and Embryo Transfer.

Occurrence of a spontaneous luteinizing hormone surge in superovulated cycles--predictive value of serum progesterone.

R. Marrs, B. Stone, P. Serafini, 1988, Fertility and sterility.

Disappearance of human chorionic gonadotropin and resumption of ovulation following abortion.

D. Mishell, R. Marrs, O. Kletzky, 1979, American journal of obstetrics and gynecology.

Detection and management of pathological, non-palpable, cystic adnexal masses.

M. Sauer, R. Paulson, R. Marrs, 1990, Human reproduction.

Longitudinal evaluation of patients with untreated prolactin-secreting pituitary adenomas.

M. Apuzzo, M. Apuzzo, V. Davajan, 1981, American journal of obstetrics and gynecology.

Presented at the Fifty-ninth Annual Meeting of the Pacific Coast Obstetrical and Gynecological Society, Ojai, California, October 1118, 1992.

R. Marrs, B. Stone, J. Vargyas, 1993 .

Casting for determinants of blastocyst yield and of rates of implantation and of pregnancy after blastocyst transfers.

R. Marrs, B. Stone, G. Ringler, 2014, Fertility and sterility.

Evaluation of mixed protocols with Bravelle (human-derived FSH) and Repronex (hMG) to assess clinical efficacy (EMBRACE) in women undergoing in vitro fertilization.

W. Keye, R. Marrs, J. Check, 2004, Fertility and sterility.

The effect of time of initiation of clomiphene citrate on multiple follicle development for human in vitro fertilization and embryo replacement procedures.

R. Marrs, J. Vargyas, B. Yee, 1984, Fertility and sterility.

An alternate approach to controlled ovarian hyperstimulation in "poor responders": pretreatment with a gonadotropin-releasing hormone analog.

R. Marrs, B. Stone, P. Serafini, 1988, Fertility and sterility.

The effect of pregnant mare serum gonadotropin on mouse embryos fertilized in vivo or in vitro

R. Marrs, F. Sato, 1986, Journal of in Vitro Fertilization and Embryo Transfer.

The effect of laparoscopic follicular aspiration on ovarian steroidogenesis during the early preimplantation period.

R. Marrs, O. Kletzky, J. Vargyas, 1986, Fertility and sterility.

Determinants of the outcome of intrauterine insemination: analysis of outcomes of 9963 consecutive cycles.

R. Marrs, B. Stone, J. Vargyas, 1999, American journal of obstetrics and gynecology.

Comparison of techniques for selection of motile spermatozoa.

T. Berger, R. Marrs, D. Moyer, 1985, Fertility and sterility.

Methods Used to Improve Gamete Efficiency

R. Marrs, B. Stone, P. Serafini, 1988, Annals of the New York Academy of Sciences.

Effect of variation of in vitro culture techniques upon oocyte fertilization and embryo development in human in vitro fertilization procedures.

R. Marrs, H. Saito, B. Yee, 1984, Fertility and sterility.

Factors affecting human sperm penetration of zona-free hamster ova

T. Berger, R. Marrs, O. Kletzky, 1983 .

Seminal prolactin concentration and sperm reproductive capacity.

T. Berger, R. Marrs, O. Kletzky, 1985, Fertility and sterility.

Luteotropic activity in serum of women following embryo or gamete transfer in a program of assisted conception

R. Marrs, B. Stone, K. Quinn, 1988, Journal of in Vitro Fertilization and Embryo Transfer.

Randomized trial to compare the effect of recombinant human FSH (follitropin alfa) with or without recombinant human LH in women undergoing assisted reproduction treatment.

S. Muasher, W. Schoolcraft, D. Meldrum, 2004, Reproductive biomedicine online.

Responses of patients to different lots of human menopausal gonadotropins during controlled ovarian hyperstimulation.

R. Marrs, B. Stone, J. Vargyas, 1989, Fertility and sterility.

Endogenous luteinizing hormone release using human menopausal gonadotropins for in vitro fertilization

R. Marrs, J. Vargyas, 1987, Journal of in Vitro Fertilization and Embryo Transfer.

Activity of a human follicular fluid protein(s) in spontaneous and induced ovarian cycles.

R. Lobo, R. Marrs, J. Campeau, 1983, The Journal of clinical endocrinology and metabolism.

Between-lot variability in chromatographic and biochemical properties of hMG.

R. Marrs, B. Stone, P. Quinn, 1990, Acta endocrinologica.

Methods to determine success of attempts to terminate early gestation pregnancies with prostaglandin vaginal suppositories.

D. Mishell, S. Roy, R. Marrs, 1983, Contraception.

Termination of early gestation with (15S)-15-methyl prostaglandin F2 alpha methyl ester vaginal suppositories.

D. Mishell, S. Roy, R. Marrs, 1981, Contraception.

Correlation of ultrasonic and endocrinologic measurements in human menopausal gonadotropin therapy.

R. Marrs, J. Vargyas, C. March, 1983, American journal of obstetrics and gynecology.

Correlation of semen transferrin concentration and sperm fertilizing capacity.

T. O'brien, T. Berger, R. Marrs, 1984, American journal of obstetrics and gynecology.

Cryopreservation of human spermatozoa: correlations of ultrastructural sperm head configuration with sperm motility and ability to penetrate zona-free hamster ova**Presented in part at the Forty-First Annual Meeting of The American Fertility Society, September 28 to October 2, 1985, Chicago, Illinoi

R. Marrs, P. Serafini, D. Moyer, 1986 .

Correlation of ultrasonic measurement of ovarian follicle size and serum estradiol levels in ovulatory patients following clomiphene citrate for in vitro fertilization.

D. Mishell, R. Marrs, O. Kletzky, 1982, American journal of obstetrics and gynecology.

Placental trophic hormones.

D. Mishell, R. Marrs, 1980, Clinical obstetrics and gynecology.

Age thresholds for changes in semen parameters in men.

R. Marrs, B. Stone, L. Werlin, 2013, Fertility and sterility.

Human granulosa cell secretion of protein(s) which suppress follicular response to gonadotropins.

R. Marrs, J. Campeau, G. diZerega, 1983, The Journal of clinical endocrinology and metabolism.

Levels of steroid and protein hormones in antral fluids of women treated with different combinations of gonadotropins, clomiphene citrate, and a gonadotropin-releasing hormone analog.

R. Marrs, B. Stone, J. Vargyas, 1988, Fertility and sterility.

Computerized staged-freezing technique improves sperm survival and preserves penetration of zona-free hamster ova.

R. Marrs, P. Serafini, Paula Serafini, 1986, Fertility and sterility.

Heterotopic pregnancy associated with assisted reproductive technology.

R. Marrs, F. Gamberdella, 1989, American journal of obstetrics and gynecology.

Interrelationships between plasma hormone levels and the content of total protein, gonadotropins and steroid hormones in antral fluids of women undergoing in vitro fertilization.

R. Marrs, B. Stone, P. Serafini, 1988, Fertility and sterility.

Monolayer and suspension culture of human prolactin-secreting pituitary adenoma.

M. Weiss, R. Marrs, O. Kletzky, 1980, American journal of obstetrics and gynecology.

EFFECTS OF CYPROHEPTADINE ON INSULIN‐INDUCED HYPOGLYCAEMIA SECRETION OF PRL, GH AND CORTISOL

J. Nicoloff, R. Marrs, O. Kletzky, 1980, Clinical endocrinology.

Gonadotropin insufficiency in patients with thalassemia major.

D. Mishell, G. Costin, G. Bernstein, 1979, The Journal of clinical endocrinology and metabolism.

Prolactin synthesis and release during pregnancy and puerperium.

D. Mishell, R. Marrs, O. Kletzky, 1980, American journal of obstetrics and gynecology.

The effect of protein supplementation on single-cell mouse embryos in vitro.

R. Marrs, T. Ogawa, 1987, Fertility and sterility.

Effect of human follicular fluids from pregnant and nonpregnant patients on the development of mouse zygotes in vitro

R. Marrs, B. Stone, P. Quinn, 1990, Journal of in Vitro Fertilization and Embryo Transfer.

Correlation of the bioactivity of luteinizing hormone in follicular fluid with oocyte maturity in the spontaneous cycle.

K. Cha, R. Lobo, R. Marrs, 1986, Fertility and sterility.

Correlation of inhibin and follicle regulatory protein activities with follicular fluid steroid levels in anovulatory patients.

R. Lobo, R. Marrs, J. Campeau, 1984, Fertility and sterility.

Correlation of human follicular fluid inhibin activity with spontaneous and induced follicle maturation.

R. Nakamura, R. Lobo, R. Marrs, 1984, The Journal of clinical endocrinology and metabolism.

Development of multiple ovarian follicles for in vitro fertilization in a patient with an undiagnosed ectopic pregnancy.

R. Marrs, J. Vargyas, P. Serafini, 1985, Fertility and sterility.

A comparison of clinical and laboratory methods in monitoring human menopausal gonadotropin therapy.

D. Mishell, R. Marrs, C. March, 1980, Fertility and sterility.

The effect of serum fractions on single-cell mouse embryos in vitro

R. Marrs, T. Ono, T. Ogawa, 1987, Journal of In Vitro Fertilization and Embryo Transfer.

The effect of serum fractions on embryo growth.

D. Mishell, T. Berger, R. Marrs, 1984, Fertility and sterility.

Effect of variable concentration of serum on mouse embryo development.

D. Mishell, T. Berger, R. Marrs, 1984, Fertility and sterility.

The Possible Role for a Follicular Protein in the Intraovarian Regulation of Folliculogenesis

R. Nakamura, R. Lobo, R. Marrs, 1983 .

Feedback Effects of Estradiol and Progesterone upon Gonadotropin and Prolactin Release

D. Mishell, U. Goebelsmann, R. Marrs, 1981, Obstetrics and gynecology.

Identification of proteins in pooled human follicular fluid which suppress follicular response to gonadotropins.

P. Roche, R. Marrs, J. Campeau, 1983, The Journal of clinical endocrinology and metabolism.

High fertilization, cleavage and pregnancy rates using a simplified intracytoplasmic sperm injection (ICSI) procedure in human infertility treatment

R. Marrs, G. Ringler, M. Schiewe, 1996 .

Embryo fragmentation as a determinant of blastocyst development in vitro and pregnancy outcomes following embryo transfer.

Richard P Marrs, Bronte A Stone, Jody Greene, 2005, American journal of obstetrics and gynecology.

Management of unexpected ovarian dermoid cyst during laparoscopy for oocyte pickup.

R. Marrs, P. Serafini, J. Kerin, 1987, Fertility and sterility.

Suboptimal laboratory conditions can affect pregnancy outcome after embryo transfer on day 1 or 2 after insemination in vitro.

R. Marrs, B. Stone, P. Quinn, 1990, Fertility and sterility.

Does the method of oocyte collection have a major influence on in vitro fertilization?

R. Marrs, 1986, Fertility and sterility.

Gonadotropin and Estradiol Levels During Ovarian Stimulation in Women Treated With Leuprolide Acetate

R. Marrs, B. Stone, P. Serafini, 1989, Obstetrics and Gynecology.

Pregnancy: a risk to initiation of leuprolide acetate during the luteal phase before controlled ovarian hyperstimulation.

R. Marrs, P. Serafini, J. Batzofin, 1988, Fertility and sterility.

Age dependency of the relationship between implantation rate (IR) and the number of embryos transferred (#ET) following controlled ovarian hyper-stimulation (COH) and in-vitro fertilization (IVF)

R. Marrs, B. Stone, J. Vargyas, 2008 .

Successful pregnancies from cryopreserved human embryos produced by in vitro fertilization.

R. Paulson, R. Marrs, J. Vargyas, 1987, American journal of obstetrics and gynecology.

Correlation of transabdominal and transvaginal ultrasound measurements of follicle size and number with laparoscopic findings for in vitro fertilization.

R. Marrs, J. Vargyas, R. Barnes, 1987, Fertility and sterility.

Levels of lnterleukin‐2 Receptor in Serum of Patients During the Menstrual Cycle and Following Embryo/Gamete Transfer

D. Wolf, R. Marrs, B. Stone, 1989, American journal of reproductive immunology.

Cryopreservation of human spermatozoa correlations of ultrastructural sperm head configuration with sperm motility and ability to penetrate zona‐free hamster ova

R. Marrs, P. Serafini, D. Moyer, 1987, Fertility and sterility.

A modified technique of human in vitro fertilization and embryo transfer.

D. Mishell, R. Marrs, J. Vargyas, 1983, American journal of obstetrics and gynecology.

Comparison of chromatofocusing and isoelectric focusing in recovery of specific activity from biological fluids.

R. Marrs, J. Campeau, G. diZerega, 1983, Journal of chromatography.

A Markov model of the cost-effectiveness of human-derived follicle-stimulating hormone (FSH) versus recombinant FSH using comparative clinical trial data.

S. Walton, H. Hatoum, W. Keye, 2005, Fertility and sterility.

Factors affecting human sperm penetration of zona-free hamster ova.

T. Berger, R. Marrs, O. Kletzky, 1983, American journal of obstetrics and gynecology.

Clinical applications of techniques used in human in vitro fertilization research.

D. Mishell, T. Berger, W. Gibbons, 1983, American journal of obstetrics and gynecology.

In vitro fertilizations future looks bright.

R. Marrs, 1982 .

Growth hormone in serum of women during the menstrual cycle and during controlled ovarian hyperstimulation.

R. Marrs, B. Stone, 1991, Fertility and sterility.

Characterization of porcine granulosa cells by isopycnic gradient centrifugation.

R. Nakamura, R. Lobo, P. Lahteenmaki, 1982, Biology of reproduction.

Effects of female and male smoking on success rates of IVF and gamete intra-Fallopian transfer.

L. Natarajan, R. Marrs, H. Klonoff-Cohen, 2001, Human reproduction.

Idiopathic oligospermia and peripheral androgen metabolism.

R. Lobo, R. Paulson, G. Bernstein, 1986, Fertility and sterility.

A separate mechanism of gonadotropin recovery after pregnancy termination.

D. Mishell, R. Marrs, O. Kletzky, 1981, The Journal of clinical endocrinology and metabolism.

Short co-incubation of sperm with oocytes is associated with an increased incidence of polyspermy in human in vitro fertilization (IVF)

R. Marrs, B. Stone, E. López, 2004 .